For the price you can not complain really. The unit is regularly used in the shower by myself without any problems, and is therefore sufficiently waterproof. Once fallen down it is me already without something was broken or damage has been made. I originally went on the assumption that the batteries are relatively quickly give up the ghost, but this is not the case. I use now to RE. Four weeks is still the first and batteries may no noticeable performance degradation notice. The rotation speed can be adjusted to two stages, which I absolutely sufficient.
From my perspective, I can issue a buy recommendation in each case.